Pulverized-fuel feeder and mixer



H. I. GENTINE.

PULVERIZED FUEL FEEDER AND MIXER.

APPLlCATION FILED 05c. 10, 1920.

3 SHEETSSHEET I.

nuaa Patented June 13, 1922.

H. I. GENTINE.

PULVERIZED FUEL FEEDER AND MIXER.

APPLICATION FILED DEC. 10, 1920.

1,419,730. Patented June 13, 1922'.

3 SHEETSSHEET 2.

I M l t/Mama? irso STATES. PATENT io r ca HOW i ATOMIZED FUEL COMPANY,OI SHELBYVILLE,

01E SOUTH DAKOTA,

t. I. enn'rmn, or snnLsYvILLE, ILLINoIs, Assmnon 'ro mmemrumors, Aconroanmon IE ULVERIZED-FUEL FEEDER AND MIXER.

Application filed December 10, 192a Serial No. name,

I To all whom it may concern:

Be it known that I, HOWARD I. GEN'rINn,

a citizen of the United States, and a resident of Shelbyville, in thecounty of Shelby and State of Illinois, have invented a new and usefulPulverized-Fuel Feeder and Mixer, of which the following is a specifiisto provide a mechanism w cation.

My invention relates to pulverized fuel feeders and mixers and itsprimary object erein the pulverized fuel will be continuously fed to amixing chamber where it is mixed wlth air and nce discharged into thefirebox of a furnace.

A further, object of the invention is to provide a fuel feeder wherelnfuel 1s kept in motion by a rotating turn table and thus caused, bycentrifugal action, to be fedto the furnace firebox.

It is also an object of theinvention to provide means wherein the fuelsupply and air supply may be regulated ,th'roughthe medium ofa commonoperating mechamsm.

in the novel combination of elements, construction and arrangement ofparts and operations to be hereinafter fully described, claimed andillustrated in the accompany in drawings, wherein:

%igure 1 isa side elevation of the complete mechanism, parts beingbroken away;

Figure 2 is a top plan view of the'same;

Figure 3 is a vertical sectional view look- 4 ing toward the forward endof the mechanism; and

Figure 4 1s a fragmentary elevation illustrating'the manner in which thefuel hopper is supported.

- Referrmg 1n detail to the .drawings wherein like characters ofreference desigthe gears of which have operative connec-- tion with theshaft 9 and the-shaft 13 of the With the preceding and other objectsand, advantages 1n mind, the inventionconsl'sts chute.

motor 11. Rotatabl sup, orted on' the gear box 12 1s a vertica shaf t 14to the upper end of which a turn table or disk 15 is fixed. Secured tothe shaft 14 below the disk 15 is a relatively large gear 16. Avertically dlsposed power shaft 17 has operative connection with thegears ,in the gear box 12' and carries, at itsupper end, a drive p1n1o n18 meshing with the gear 16 to impart rotat on thereto. Suspended in thefloor or ce1l1ng 19 is a hopper 20 in which the pulverized fuel isplaced, and secured to the mouth of the hopper and overlying thePatented $1 1 118 13, 1922..

turn table 15 is a rectangular bottomless casing 21.

Mounted in guides 22 at the forward end of the casing is a verticallymovable gate or sllde valve 23 adapted to be adjusted to regulate thequantity of pulverized fuel to be fed from the rotating disk or turntable.

Communicating with the airinlet pipe 7 is a vertically arrangeddischargechute 24which is disposed forwardly. of the hopper 21 and isformed with a longitudinal slot25 in which the disk or turn table'15pro- ]ects. A regulating slide valve 26 is mounted 1n the upper end ofthis chute and controls the fuel from the disk to the moving off theturn table after the same is fed out beyond the casin 21, there isprovlded a forwardly exten mg wall'27 which is mounted upon the forwardwall of the casing 21'. 1

A butter-fly valve 28 is pivoted in the pipe 7 to control the airpassing to the casing 6, and pivotally connected with an arm 29 fixed tothe axis of the valve 28 is a link 30 pivoted intermediate its ends,as-shown In order to prevent the fuel from a at 31. An operating .lever32 has one end pivoted to the casing 21 and to this operatlng lever 32the upper end of the link 30 is pivotally connected. A link 33 has oneend pivotally connected with the slide or gate valve 23 and its oppositeend pivotally connected with the operating lever 32.

a It will thus be seen, that upon manipulating the lever '32, both thebutter-fly valve and the gate valve may be adjusted to permit the fueland air to be fed to the casing 6 in the proper proportions. In order toprevent the fuel from massing in the hopper 20, a pair of verticallyarranged agitator blades 34 is fixed to the upper end a discharge chutearranged forwardly of the v of the shaft 14, which blades project intothe hopper 20.

In the operation it will be obv1ous'that as the fuel gravitates from thehopper 20 it is fed outwardly upon the disk 15 by centrifugal force andas the fuel banks orpiles at the wall 27, it is gradually thrown throughthe slot 25 and carried to the pipe 7 by way of the discharge chute 24.The.

amount of fuel to be permitted to pass from the disk 15 to the chute 24is governed by the valve 26.

It is to be understood that the form of my invention herein shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes in the shape, size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described my invention, what I claim as new and desire'tosecure and protect by Letters Patent of the United States, is.:':

-1. A mechanism of the character described comprising a fan casinghaving an inlet and an outlet, a, hopper supported at one side of thefan casing adapted to contain fuel to be fed to the latter, a verticallymovable valve for controlling the amount of fuel to be fed from thecasing, a rotatable turn table'mounted below the hopper, a dischargechute arranged forwardly of the turntable and communicatin with the 'faninlet," and a forwardly exten in wall projecting from the hopper andoverlylngthe turn table and adapted to prevent the fuel from moving withthe'latter. y x

2. A mechanism of the character described comprising a fan casing havingan inlet and an outlet, a hopper supported at one side of the fan casingadapted to contain fuel to be fed to the latter, a vertically movablevalve for controlling the amount of fuel to be fed from the casing, arotatable turn table mounted below the hopper,

turn table land communicating with the fan inlet, a forwardly extendingwall projecting from the hopper and overlying the turn table and adaptedto prevent the fuel from moving with. the latter, and earing operativelyconnecting the motor wlth the turn table.

3. A mechanism of the character described comprising a fan casing havingan inlet and an outlet, a hopper supported at one side of the fan casingadapted to contain fuel to be fed to the latter, a vertically movablevalve for controlling the amount of fuel to be fed from thetcasing, avertically arranged rotatable shaft, a turn table fixed to the upper endthereof and disposed below I the hopper, a discharge chute arrangedforwardly of the turn table and communicating with the fan inlet, aforwardly extending wall projecting from the hopper and overlyin theturn table and adapted to prevent 51c fuel from moving with the latter,a relatively large gear fixed to the shaft, a drive pinion meshing withthe gear, and a motor operatively connected I with the ,drive pinion. 1

4. A mechanism of the character described comprising a fan casing havingan inlet and an outlet, a hopper supported ,at one side of the fancasing and adapted to contain fuel to be fed to the latter, a'vertically movable valve for controlling the passage of fuel to thecasing, a rotatable table disposed below the hopper, a discharge chuteling valve. I

- HOWARD LGENTINE.

